The Oscars celebrate the craft and creative excellence behind the best movies of the year – but the red carpet ahead of the ceremony is quite a different matter. It's about one thing, and one thing only: Fashion. The world's most famous catwalk, it has the power to take a celebrity's style moment and elevate it into historical popular culture. So the pressure is on to make a statement and steal the spotlight. Whether stars opt to dazzle with opulence, impress with fine tailoring or shock with